What are wearable gadgets and why do girls need them? History of wearable technology: from the first glasses to the Apple Watch
Masha Vorslav
Wonderzine Editors As part of the “Beauty” section, she writes not only about jars, but also about everything that helps girls feel good - we have repeated this more than once, and we will repeat it now. That's why we are interested in all kinds of devices: their variety and functionality are enormous, and they can make life much easier and even improve - especially if you know how to use them. We're starting to look at this topic by talking about basic (yes, a pedometer or a heart rate monitor is like in the clothing world) wearable gadgets that help you stay - or become more - healthy.
What are wearable gadgets
The not-so-common expression “wearable gadgets”- simply the most adequate and established translation of the English “wearable technologies”. WT is called any small computers or another useful electronics, adapted for constant carrying with you. The first such device is considered to be a calculator wristwatch from the 80s, the most common are all sorts of Bluetooth devices. Both of these things, to be honest, don’t interest us too much, but their related activity monitors, self-heating socks and smart T-shirts do.
About QS devices
Devices, working on the Quantified Self concept, “count” a person and his surroundings: pulse, number of steps, sleep time, calories burned and consumed, mood, humidity and ambient temperature - all these and other indicators are displayed on the displays of the corresponding devices, which, according to in the words of one of the co-creators of the concept, writer and Wired columnist Gary Wolf, “help you express yourself through numbers.” You've probably heard about Nike+ Fuelband, Jawbone Up, and the Fitbit clip, and you're unlikely to find anyone you know with one of these or another activity tracker. The supply of such gadgets is growing year by year, and that’s great: if you don’t like something about one, it doesn’t necessarily mean that the QS story is not for you: perhaps the device that helped your friend lose 12 kg or establish a daily routine , it doesn’t suit you, and you need to try others.
About other devices
Quantified Self- a well-developed, but not the only direction for the development of wearable gadgets - electronics have long been successfully integrated almost everywhere. About a month ago, the well-known crowdfunding site Kickstarter raised money for another smart shirt venture - “smart” workout clothes Radiate Athletics, which, firstly, allows you to stay dry during exercise, and secondly, changes the color of the fabric depending on on the temperature (that is, warmness) of a body area: this way you can see which muscles are already warmed up and which ones still need to be worked on. Among the similar ones: sweatshirts that, paired with the appropriate application, imitate hugs (their goal, by the way, is serious - to help calm down children suffering from autism and ADHD) and more prosaic warming socks. And also: a bodyguard bracelet, with the press of one button you can send an SOS signal to your friends, and Lapka environmental sensors. The latter are nice (this is important) sensors for iOS devices that show radiation levels, electromagnetic radiation, humidity and temperature around and - wow! - level of nitrates in vegetables and fruits.
What are they needed for
We are living in a dynamic and rapidly changing world, where girls face problems whose solutions cannot be found in glossy magazines. The wonderful blogs GeekChick.ru and I"m blogging IT “left” largely due to the rejection and reluctance of girls to understand technology - the very one that can solve these problems. The fact that thousands of people learned what RSS is, why Evernote is needed (
The development of Internet of Things technologies leads to changes in habits and an increase in the quality of life of people. One of the areas where the penetration of gadgets has greatest influence already now, is healthcare. Over the past few years, the number of devices that allow users to monitor their health and even receive qualified medical care remotely has been constantly growing. Many such devices also make the work of doctors easier.
Today we will look at 17 interesting medical gadgets that work in conjunction with a smartphone.
The Russian gadget CardioQVARK is a special case for iPhone, with which the user can independently record a cardiogram at any time, anywhere. To do this, you need to install the application on your smartphone, put on the case and place your fingers on the sensors on the device. Next, the cardiogram is sent to the cloud for processing, and the result instantly comes to the user and doctor in an intuitive form. For doctors, there is its own application with advanced tools in which you can conduct unlimited amount patients, analyze the condition of cardio-vascular system, compare dynamics and monitor response to exercise and medications, as well as convey recommendations to the patient
Price: 8500 rub. (pre-order on the website)
The Tinké monitor allows you to track your heart rate, breathing rate, and blood oxygen saturation levels. To read the readings, you need to place your finger on the device for a few minutes. After this, the data will appear in the application - there are versions for iPhone and Android.
Wearable neurostimulator for combating chronic pain. Using a special bandage, the stimulator is placed on top part shins, after which the device begins to generate weak electrical impulses - they block pain signals passing through the spine to the brain. As a result, the user stops feeling pain. This allows, for example, those who cannot do this due to various attacks to sleep - the gadget is the only wearable neurostimulator that is certified by the American regulator FDA to work while sleeping. The device operating modes are configured using a mobile application.
Stethee Wireless Smartphone Stethoscope is designed for home use- the project developers want to change the situation in which only doctors can use a stethoscope. The device works wirelessly - you just need to put it on your chest and press a button. After this, the measurement results will be transferred to an application on the smartphone, which will build a graph of heartbeat and breathing. This information is also stored on remote server, where the “normality” of indicators is analyzed - if the user is advised to see a doctor, the device will start flashing.
The Angel gadget works not only as a fitness tracker and sleep monitor, but also monitors heart performance indicators - if rhythm disturbances occur, the gadget notifies the user. In addition, the device has a built-in special temperature sensor to detect ovulation - a function that will be useful for couples who want to have a child.
Price: the batch of devices for $159 is sold out, there is a version for $99 on the website
Withings mobile blood pressure monitor allows you to quickly and easily measure arterial pressure, saving information in a smartphone. The blood pressure cuff connects to your iPhone (iPod Touch or iPad) and the app then displays your blood pressure information - the data can be graphed and sent to your doctor.
The MobiUS SP1 mobile ultrasound scanner is intended for use in hospitals by surgeons, obstetricians-gynecologists, emergency physicians and physicians of other specialties. Using a USB cable, the gadget connects to a smartphone and transmits ultrasound information via Wi-Fi. The data is displayed on the included smartphone running Windows 6.5. Synchronization with a computer is possible using a cable. The main advantage mobile scanner its mobility compared to standard ultrasound equipment has become.
A special “collar” that monitors sleep and combats snoring and its complications. The creators of the device claim that snoring most often occurs when a person sleeps on his back. That's why Night Shift begins to vibrate when the user begins to snore while lying on their back. The gadget also stores information about the quality of sleep - it is displayed in mobile application. In this way, the user can analyze the dynamics of improvement of their sleep.
CellScope has developed a smartphone overlay that allows you to examine a child's ear in order to detect signs of infection or injury in time. Using the application, parents can conduct an examination themselves and then transfer the data to the attending physician.
Breathalyzer tubes are used by drivers around the world to determine blood alcohol levels. There are similar gadgets that synchronize with the iPhone and transfer data to mobile applications. The information is then analyzed and the user is given graphs illustrating how their body metabolizes alcohol.
The OneTouch VerioSyng mobile glucose meter allows diabetics to quickly measure their blood glucose levels. Connectable to iPhone or iPad device a test strip with a drop of blood is inserted, after which the analysis is carried out. The data is then displayed on the display and stored in a mobile application, which also allows you to monitor carbohydrates consumed, insulin administered and glucose levels.
Price: $82 per kit with test strips
With an impressive fundraising campaign on Indiegogo, the Embrace bracelet is designed to help manage epilepsy. He is able to record the moment of the onset of an epileptic seizure - the device achieves this by measuring the galvanic charge of the skin, body temperature and its position in space thanks to a gyroscope. When a seizure begins, a signal is sent to the patient’s caregiver’s smartphone—the message contains information about the patient’s coordinates. In addition, the application stores statistics about attacks, which allows you to identify their causes - for example, in some cases they occur more often when playing sports.
The device allows you to analyze your breath to track asthma symptoms and prevent attacks. To collect data, the patient needs to attach the gadget to his neck and simply breathe. AirSonea records breathing patterns, which allows you to understand what caused an attack in a particular case, and can also send reminders to take medications and transmit analysis information to the user's relatives or doctor.
Another gadget from Withing. Smart scales Smart Body Analyzer measures weight, body mass index, calculates the percentage of fat, and also takes indicators of cardiac activity. For people who play sports, there is a sports mode (Athlete mode). The collected information is transferred to a smartphone application, where weight loss and weight gain graphs are built. The user can keep a diary, and then it will be immediately clear what events affect weight gain or loss - for example, stress from going out new job leads to weight gain, and starting morning runs leads to weight loss.
The Kolibree smart toothbrush monitors how the user brushes their teeth and transmits information about this to a mobile application - then the user is given recommendations on whether to brush their teeth more often and which areas of the oral cavity to pay more attention to. In addition, information can be shared with other device users by organizing "teeth brushing competitions" - this feature should attract children who are usually not very fond of brushing their teeth.
Wearable technology is no longer something fantastic - the superhero gadgets that many fantasized about as children no longer seem far-fetched. Every month new models of smart watches are released, and every now and then messages appear on the Internet about new augmented reality glasses and new sports trackers. Small tech startups are squeezing out big players with new and affordable developments. In this article, we decided to understand the current variety of wearable gadgets and take a little look into the process of their future development.
What are the reasons for the emergence of a new wave of gadgets? 2012 was the first year when smartphone sales growth remained at the same level. A number of companies, including giants Samsung and Sony, have relied on the development of smart watches, while others have decided to create alternative wearable devices.
Over the past two years, manufacturers have introduced a large range of bracelets with gyroscopes and sensors that allow you to monitor fitness activity. The most popular ones available on this moment are Jawbone UP, Fitbit Force, Nike FuelBand and Shine. All of them are synchronized with a smartphone and display data on activity, the number of steps taken and calories burned in the form of visual graphs in the mobile application. In addition to tracking your daily activity, many bracelets are capable of monitoring your sleep - this way you can learn a lot about yourself, for example, how long it takes you to fall asleep, how actively you toss and turn, or even wander around the apartment in your sleep, when your slow and slow sleep phases begin and end. REM sleep Most of the bracelets have an alarm clock that wakes you up using vibration depending on that particular phase. So, if it is necessary to wake you up between 8:30 and 9:00, the bracelet will select the best moment for this so that you get up on the wrong foot. It is believed that the chance of waking up alert and rested is higher during the REM sleep phase.
At the recent major exhibition CES 2014, LG introduced the Lifeband Touch fitness tracker,
and Sony has a SmartBand.
Camera that takes pictures every 30 seconds
Adherents of the Quantified Self movement, who understand themselves thanks to wearable technologies, are coming up with new ways to record their lives. With the proliferation of miniature cameras, more and more gadgets for lifelogging are appearing on the market. The most striking example is the Narrative Clip camera - a small clip that can be attached to your chest pocket so as not to lose a single memorable (or not so memorable) moment of your life. A device with a geotracker takes photographs of what is happening every 30 seconds, after which you can watch the footage in the form of a time-lapse video on your computer or smartphone. Probably, such a gadget could come in handy during your next flight to the astral plane this weekend.
The concept of a smart watch itself is far from new. Digital Watch with advanced functionality and the ability to connect to a computer, existed back in the 1980s. However, if you do not take into account the notorious geeks, fans of “Star Trek” and Dick Tracy, the devices were not popular. Given technological advances and the advent of increasingly powerful, smaller, and lower-power processors, as well as voice recognition technologies, the ubiquity of wireless internet Smart watches are becoming more than just useless toys, but increasingly efficient mini-computers. According to experts, by 2017 their market will grow to $50 billion. Let's look at some of the most striking products from this segment.
Release date: End of February
The Pebble Technology company, having raised money for its development through Kickstarter (more than ten million dollars), delivered the first Pebble watches to its customers in early 2013. The device communicates with an iPhone or Android smartphone via Bluetooth and allows you to answer calls, read SMS, monitor email, and control a media player. At the recent CES 2014, the second generation of “smart” devices was announced. Pebble watch Steel, with the same filling as in previous model, only clad in a metal body. When a notification is received, the watch vibrates, turns on the backlight for a few seconds, and displays the information on the screen. At the moment, developers are preparing to introduce special applications for Pebble. These will be trackers for cyclists, runners and other athletes.
The black-and-white display of the watch is created using ePaper technology, thanks to which the watch consumes minimal energy compared to analogues.
At the beginning of September, Samsung presented its “smart” watches. The Galaxy Gear also connects to your smartphone via Bluetooth. The device, priced at $300, uses operating Android system, supports a number of special applications, and can also make calls, display messages Email and notifications from social networks. The watch has a gyroscope and accelerometer for activity tracking, as well as a camera for taking photos and videos.
After the device entered the market, many were greatly confused by its price tag, despite the fact that for its normal functioning you still need a smartphone. Other main disadvantages of the watch are compatibility only with top devices Samsung brands(with phablets Galaxy Note 2, Note 3, Note 10.1 2014 Edition and Galaxy smartphones S4, S3) and a very short battery life, which has to be charged almost every day. By the way, the return of smart watches in American retail stores Best Buy amounted to 30%.
According to rumors, Samsung will present a sequel to its smartwatch on February 24. Supposed technical improvements to the Galaxy Gear 2 are also known. They should obviously have a battery increased capacity, GPS module, support for other devices, as well as a curved display.
Sony SmartWatch 2
Release date: October 2013
Sony has already released two smart watch models. The latest release in the line is SmartWatch 2, similar to competitors' products. Like most smart watches, the gadget allows you to check all updates on the owner’s Android smartphone, including SMS, messages from social networks and Gmail, paying attention to them using soft vibration. The Sony watch comes with a black metal or rubber band, and as a bonus, the company offers additional bands in seven different colors for $25.
Other alternatives and Apple smartwatches
There are also alternative options watches, for example Motorola MOTOACTV, QualcommToq, The Agent, I’m Watch, MetaWatch Frame & Strata, ConnecteDevice Cookoo, Wimm One and other less popular products. As interest in the devices continues to grow, more and more enthusiasts are turning to crowdfunding platforms Kickstarter and IndieGogo to attract investment and release new smartwatches. Thus green light saw Hot, Vachen and others watches. Recently, a Nokia patent for a “smart” bracelet with as many as six displays surfaced online. As planned, it will have multitasking. For example, a messenger may be running on one screen, and on another mail program, on the third - a program for viewing photos.
Motorola MOTOACTV
QualcommToq
The Agent
I'm Watching
MetaWatch Frame & Strata
ConnecteDevice Cookoo
Wimm One
Throughout 2013, rumors about Apple smart watches raged in the media. First, a patent application was discovered on the Internet, in which this same gadget was presented, then in different sources details emerged about its functionality and purpose. Experts familiar with the development reported that Apple is testing smartwatches with a curved display and even solar battery. In addition, the company was allegedly considering creating a gadget that could be charged by moving your hand. However, in any case, the device will only serve as an “additional” accessory that helps you read messages and make calls without taking the iPhone out of your pocket. It is expected that iWatch will be shown at one of the company's autumn presentations in 2014.
While smartwatches are becoming more affordable, the next big trend is augmented reality glasses. These devices project images onto small display opposite the user's eye, which can carry much more functionality than a miniature watch screen.
The first developments in this area were started by University of Toronto professor Steve Mann. The inventor wore something similar about 35 years ago, and now he shares his knowledge with manufacturing companies.
The most loudly discussed such device can rightfully be considered Google Glass. The Internet giant has been testing its brainchild since April 2012 and does so with great fanfare. According to the promises of the creators, “smart” glasses should go on general sale very soon, and they will cost, preliminary estimates, about 1500 dollars.
The device has a built-in camera, display and voice control. The glasses are capable of showing navigation, last news from social networks, as well as make calls and use other applications.
Steve Mann
The aforementioned Steve Mann works for a company called Meta, which has created its own augmented reality glasses. Two models, META.01 and META Pro, are already available for pre-order on spaceglasses.com, which will hit the market in July 2014. Devices based on Epson Moverio glasses support 3D content display and virtual reality function.
According to its creators, the $667 META.01 is not only superior in Google capabilities Glass - these devices are in different classes: Glass is a headset for a smartphone, and stationary augmented reality glasses. As a result, users, according to promises, will be able to control 3D interfaces, like Tom Cruise in the film Minority Report, sculpt virtual pots and play chess right in the air.
Other crowdfunded smart glasses include the $500 GlassUp device, which was unveiled at CES 2014 in January. Unlike Google Glass, which has a small screen in the corner, these glasses have large glasses. The video stream in the device is projected into the right lens with an image resolution of 320x240 pixels. The glasses will only have a camera in a year, but for now GlassUp can be controlled using the touchpad on the temple. The gadget with a built-in accelerometer, compass and light sensor connects to a smartphone or tablet via Bluetooth. After that, it broadcasts notifications, navigation information and other data to the user.
Meanwhile, the company is preparing to release META 2, glasses that will feature an improved image transmission system, more precise position sensors and a new body.
Another product worthy of attention is the development of the company Innovega, which is a set of glasses similar to Google Glass and smart contact lenses. The iOptik system allows you not only to view digital content, but also to qualitatively improve your vision several times, allowing you to focus and clearly see all the details of the object in question, both near and far away. The lenses play the role of displays, onto which two mini-projectors located in the glasses transmit the image. The projected information first passes through the central filter of the lens and is ultimately focused on the retina.
Another augmented reality headset, Recon Jet, is also similar in functionality to Google Glass, but is designed specifically for athletes and people leading active image life. Various data, such as movement speed and jump height, are displayed on a display located under the right eye. As the developers assure, the displayed image will not block the view and distract from what is happening around. By the way, not so long ago Samsung company has patented similar sports glasses that “will allow the wearer to receive incoming calls and listen to music while exercising.”
“I carry everything I have with me,” said the sage from Priene 2500 years ago. And although a good backpack can hold up to two pounds of young potatoes or apples, it is much more pleasant if the belongings useful for a person are compact and light. Or better yet, you don’t even notice it until you use it.
The most useful "wearable" gadgets
The very first portable gadget was probably a laptop. Invented back in the era huge computers, he pleased with the fact that he could be moved from place to place by the efforts of one person. However, laptops for a long time were a kind of “thing in itself”, making their way into the mass market through difficult paths. At first, this was hampered by the dimensions, and then by the cost, which until the 2000s remained at a level twice as high as that of a PC with an identical configuration.
A technological breakthrough occurred at a time when LCD screens became quite cheap to produce, and the miniaturization of components ceased to play a major role in pricing. These factors made laptops the temporary kings of the wearable device market, and they also served as prerequisites for the revolution that allowed tablets to take this throne.
The list of laptops and tablets would not be complete if we did not remember smartphones. Having long overcome the stage of a niche product under the guise of PDAs and “communicators,” they got their chance thanks to the efforts of Apple designers and programmers, who combined the convenience of a finger touch input with simplicity operating system iOS.
One way or another, despite their success, laptops, tablets and smartphones still did not fully satisfy people’s needs for mobility and portability. With all their lightness and miniature size, a person still had to think about how he would place the gadget, where he would put it, how convenient it would be with it on the road.
It so happened over a long history that people do not have these questions about three things: clothes, jewelry and wristwatches. It was this trio that became the model for creating “new generation” gadgets - for constant “imperceptible” wear.
T-shirt instead of a smartphone
As mentioned above, when creating a laptop, tablet and smartphone, manufacturers solved the problem of reducing size and cost, and also looked for ways to simplify interfaces through programs and network infrastructure.
As they move into the production of smart watches, jewelry and clothing, they face new challenges. However, in the case of watches, there are familiar problems. The same miniaturization. Making a full-fledged, albeit rather simple, computer within the dimensions of a regular watch case remains non-trivial task: CPU, memory chips, sensors - all of them are already very freely located inside the very thin smartphones, but with the elegance of modern wristwatch So far they get along mediocrely.
In this sense, thinner and lighter “smart” bracelets, pendants and pendants are much easier to make: in them, processors are replaced by simple controllers, and the main functions are assigned to sensors.
However, both watches and bracelets still face one technological obstacle - battery capacity. Even the batteries of smartphones and tablets cannot yet boast impressive long-term operation, however, for watches and bracelets, the current ratio of battery size to its energy storage capabilities looks downright bleak.
“Smart” clothes (including shoes) are difficult to produce because they are only now beginning to appear electronic circuits and components with flexibility comparable to fabric or leather. In addition, this kind of “gadgets” also suffer from energy deficiencies in batteries. Finally, the infrastructure that allows “smart” shirts and panties to turn from an experimental novelty into a useful thing has not been fully built.
However, the development of wearable gadgets continues as usual. Already alone. Not two, but dozens of companies offer samples to the mass market similar devices. We would like to tell you about the most interesting, promising and successful of them today.
Jabra Pulse wireless headphones
One of the main functions supported by the vast majority of wearable gadgets - watches and bracelets - is heart rate measurement. This option is considered basic for sports use of the device; it is its support that formally allows the use of the prefix “smart” in the name.
Pulse measurement in sports tracker bracelet seems like a natural solution. In smartwatches, it is due to the versatility of the device. However, the obvious solution - adding this function to in-ear headphones - for some reason occurred to the engineers of only one company: Jabra.
Headphones Jabra Pulse- the device is wireless. To work, they need synchronization with a smartphone or tablet, which is used as a sound source. Communication channel - Bluetooth. Through the same bluetooth headphones sent to special application heart rate data.
The heart rate sensor is integrated into the part of the earphone that is directly in the ear. According to Jabra engineers, this arrangement allows for the most accurate results in terms of modern medicine. By the way, Jabra uses a third-party sensor that certifies it as “clinical grade.”
By receiving data, the Jabra Pulse app can keep a log of changes, presenting it in the form of a chart. The application also allows you to calculate the distance that a person ran (or walked) during a workout and, based on this information, obtain the VO2 max oxygen absorption index.
The built-in battery of the headphones allows them to work for five hours. Unfortunately, Jabra Pulse does not provide any energy saving mechanisms - for example, by turning off the heart rate sensor.
Athos kit
Sensors that measure the physiological activity of the body can be installed in watches, bracelets, and headphones. However, to fully collect information, they must still be distributed over the entire surface of the body - and this means integrated into clothing.
The Core has a six-axis acceleration sensor and bluetooth module, which collects data from clothing sensors and transmits it to a smartphone.
The clothing contains: a T-shirt - 12 electromagnetic activity sensors, 2 heart rate sensors and 2 breathing sensors; the shorts contain 8 electromagnetic activity sensors and 4 heart rate sensors. All this together allows the proprietary application to draw load distribution diagrams, highlight working muscles in real time, and also determine what tone they are in. In addition to keeping a heartbeat log, the Athos application records the rate at which the rhythm returns to normal parameters, monitors correct breathing during training, and so on.
Stryd Clothespin Sensor
While other smart devices focused on physical education and sports increase the number of parameters read from sensors and complicate the presentation of the results obtained, the Stryd clothespin sensor is focused on identifying one, universal and generally accepted performance characteristic - in in this case running.
The developers call Stryd "the world's first portable device to measure running power” - and suggest using “good old” watts for training efficiency. They explain their choice by the fact that watts are, after all, the official unit of measurement. international system SI, and the fact that the pulse and breathing rate can depend on the individual characteristics of the person and the environment.
Calculating the load in watts depends on the force expended and the speed. Stryd measures them using a system of sensors that detect changes in the runner's position in a three-dimensional coordinate system. This allows you to take into account not only speed, but also changes in the terrain - down to the most insignificant nuances of the coating (sensors allow you to take into account the speed of your feet touching the surface).
The information collected by Stryd can be transferred to smart watches or tablets - so that the runner can see changes in load in real time, as well as be saved in a log and transferred to a computer, in special program analysis.
Cicret Bracelet Screen
Many have already become accustomed to smart bracelets, clearly imagining this device as a gadget stuffed with physical activity sensors. The good thing about bracelets is that they have a simple and compact design, which leaves a lot of room for choosing the shape, material and color of the strap.
I fundamentally disagree with this simplification of the functions of bracelets. French company Circet, which sees them as a gadget very conveniently located for projecting a certain picture onto the back of the wrist.
Their Cicret Bracelet may not be too surprising in design, since the company's engineers couldn't afford to trade the space in the case for a fun colored strap. However, at its core, this bracelet is a real microcomputer with a built-in pico projector and a rangefinder camera that reads the user’s touches.
Due to the fact that the snake-shaped case of the Cicret Bracelet has everything you need: processor, memory, USB port, memory card slot, communication modules and battery, the device does not need a companion from smartphones and tablets.
Currently, Cicret engineers have a working prototype, which they want to develop into a commercial product by early 2016. At the moment, it has been proven that the gadget works normally (projects an image and correctly detects touches) for people of any skin color and under any lighting conditions.
Infinite battery
At the very beginning of the article, we mentioned that the issue of power supply is very pressing for wearable gadgets: laptops, tablets, smartphones. However, in the case of smart watches, bracelets, pendants and smart clothing, everything is somewhat more complicated and simpler at the same time.
On the one hand, it is difficult to place a battery of decent capacity in a chronometer case or in the waistband of shorts.
But on the other hand, wearable gadgets of the “new generation” may not need a battery at all. After all, they have direct contact with a battery of enormous potential capacity - the human body.
Technologies for extracting energy from the human body and transferring it to wearable devices are already being actively developed. Currently, the greatest success has been achieved in national university Singapore. His collaborators managed to create a flexible energy generator the size of a sweat stamp. The generator consists of two flexible layers of silicon and a gold spacer between them. The thickness of the gold layer is only 50 nanometers. This is enough so that when the surface of the generator touches an open area of skin, it begins to generate currents with a potential of 7.3–7.5 volts. At the moment, the generator allows the human body to be used as a battery to operate 12 LEDs.
